Panasonic KX-UT113 Configuration Manuals page 6

Registrar Server Port: the default value is 5060.
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2) Authentication
Source Port : the SIP port number for each line must be unique,
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default value: 5060 (for Line 1) and 5070 (for Line 2).
Authentication ID:same as the extension's number in general.
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Authentication Password:password of extension.
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3) Set transport protocol
Transport Protocol : same as the option on extension page
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4) Others
Figure 1-5 SIP Authentication
Figure 1-6 Transport Protocol
Panasonic Configuration Guides
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